Preliminaries

This section contains the front page, journal information, and contents page.

Bibliographic Details

Main Author:	RAMOS HOLGUÍN, BERTHA
Format:	Online
Language:	eng
Published:	Universidad Pedagógica y Tecnológica de Colombia 2019
Online Access:	https://revistas.uptc.edu.co/index.php/enletawa_journal/article/view/9792